<%--设置要写入的字符串 --%> <% writer.setSomething("写点东西到文件"); %> <%--读取上面设置的字符串 --%> <% out.print(writer.getSomething()); %> <%--调用writer的writeSomething方法写入文件并返回成功或者出错信息 --%> <% out.print(writer.writeSomething()); %>
//WriteOver.java javabean文件 import java.io.*; public class WriteOver { private String path; //文件路径 private String something;//写入的字符串 //初始化 public WriteOver() { path = null; something = "缺省文字"; } //设置文件路径 public void setPath(String apath) { path = apath; } //得到文件路径 public String getPath() { return path; } //得到字符串 public void setSomething(String asomething) { something = asomething; } //设置字符串 public String getSomething() { return something; } //写入字符串到文件中,成功则返回success字符串 public String writeSomething() { try { File f = new File(path); PrintWriter out = new PrintWriter(new FileWriter(f)); out.print(this.getSomething() + ""); out.close(); return "Success."; } catch (IOException e) { return e.toString(); } } }上一篇:jsp文件操作之追加篇
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